AntennaMastsRus - 8" Screw-On Antenna is Compatible with Chrysler 300 (2008) Fits: 2008 Chrysler 300 Easy Screw-On Installation with No Modification, Cutting, or Drilling Size: Length: 8", Base Width: 0.5" Ships from Wisconsin!! 100% Satisfaction Guarantee, Period! Let us Save YOU $$ Over your Local Dealer!